PWS FSC556 Compensator

PWS3When I decided to dive into the AR-15 world, I needed to choose and a muzzle device. Since I was going to be using a 14.5inch barrel, I needed a long enough muzzle device to reach the 16 inch overall barrel length, so I wouldn’t have to SBR the rifle. I was looking for a device that was not only a flash hider but also a compensator.  This limited my selection, however, the choice was easy once I came across the PWS FSC556 Compensator. Once I installed it on my rifle, I was reaffirmed in my selection. Not only was it good at hiding the flash, but the compensation was fabulous. Shooting the rifle with the FSC556 was comparable to shooting a 22 long rifle. The compensation keeps the rifle shooting nice and flat, which aided in getting back on target quicker and moving from target to target. I have shot other compensators that seem to drive the barrel down more than necessary. And the FSC556 stayed nice and level. This muzzle device is definitely not the quietest out there, however, it is also not the loudest I have heard. Along with the increased noise (which I really didn’t notice but was told by my friends shooting with me) was the increased muzzle blast to that is directed to the sides. My friends shooting next to me kindly (or not so kindly) let me know about this. All I had to say though was “look at my groups” and they wanted to shoot it.


Since purchasing the FSC556 I have also put the FSC30 on my AR-10 and it does just as good of a job on the heavy hitting 308.

Firearms Insider Reviews - 8 Key Points

Claim to Fame:  A flash hiding compensator for putting a high volume of rounds on target.

Target Market: For those looking for a flash hider and compensator in one.

FNBs (Features & Benefits of this product):

  • Flash Hider
  • Compensator
  • Improved recoil management for follow up shoots
  • It is Gemtech Halo compatible
  • Standard muzzle device on FNH rifles

What other aesthetic options or finishes are available?:  Black

There are also a  couple of different models depending on your needs.

  • FSC556 - Standard 5.56/.223 model
  • FSC30 - Standard 30 cal model
  • FSC91 - HK compatible model
  • KAC556 - basically the same as the FSC556 but is compatible with the Knights Armament suppressors

What others are saying?: "BravoCompanyUSA: I've got 20yrs behind most AR type weapons and regardless of "blow back" and "noise" from this comp, it's insane.  Anyone who has ever been downrange in the soup knows that "noise" is nothing.  Couldn't hear in the audible distress if you tried, but the drop in group at a high rate of fire is insane!  Feels like dumping a BB gun load with punch!  Thanks to Mr. Grant for nailing this beauty!"

 Price point:

I need it now! Availability: You can purchase the PWS FSC556 from Brownells.

Our Rating:


  • Flat shooting
  • reduced muzzle flash


  • Price
  • Increased noise and muzzle blast
  • Not compatible with most suppressors

Score: 8.5 Great85